The argument, which apparently stemmed from a disagreement over a performance, took place during auditions in North Carolina on Tuesday. Fox had no comment for TVGuide.com

Rumors of a feud between the two singers have been circling since they were announced as judges on the Fox competition show. "It's music, it's singing, it's laughter," Carey said at a press conference last month. Executive Producer Nigel Lythgoeadded, "It's not about them. They know that. It's about the kids that come out there."